Patent US1412514A successfully refreshed from Google Patents.
US2658138A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radio receiver
Assignee: HALLICRAFTERS CO
•
Filing: 1945-12-01
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Granted: 1953-11-03
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Expires: 1965-12-01
Abstract
No abstract record available.
Inventors
- 👤 Robert E Samuelson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 14:24
CPC Classifications
H; H03; H03J; H03J7/00; H03J7/18; H03J7/32
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1753444A
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US2084760A
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US2178074A
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US2184072A
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US2245385A
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US2263634A
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US2381940A
Cited
US2416346A
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US2505754A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-11-02 | 1957-05-04 | 1957-11-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-11-02 | 1961-05-04 | 1961-11-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-11-02 | 1965-05-04 | 1965-11-03 | $7700.00 | Window Closed / Lapsed |